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Finding the Fourth Proportional to 126,475.92, 189,807.42 and 59,916.18

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Solution

The fourth proportional to 126,475.92, 189,807.42 and 59,916.18 is: 89,918.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,475.92 : 189,807.42 = 59,916.18 : x
  2. Step 2: Convert to fraction form
    126,475.92/189,807.42 = 59,916.18/x
  3. Step 3: Cross multiply
    126,475.92x = 189,807.42 × 59,916.18
  4. Step 4: Simplify right side
    126,475.92x = 11,372,535,542.06
  5. Step 5: Solve for x
    x = 11,372,535,542.06/126,475.92
  6. Step 6: Final answer
    x = 89,918.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.